Seal with two sealing rings

A seal for being disposed between two concentric relatively rotatable parts which are radially spaced apart, the seal being disposed inside of and for sealing the radial space between the relatively rotatable parts,

• the seal comprising:
• an axially inner sealing ring located axially more inward of the axial ends of the space to be sealed;
• an axially outer sealing ring, located axially outward of the inner sealing ring;
• the outer sealing ring being secured to a first one of the relatively rotatable parts for rotating with the one part and with respect to the second relatively rotatable part;
• the inner sealing ring being secured to the second, other relatively rotatable part for rotating with the second rotatable part with respect to the first relatively rotatable part;
• each of the sealing rings including a leg extending generally radially across the radial space;
• the axially outer sealing ring including a sealing lip of elastic material which extends to an engages the second relatively rotatable part for defining a seal there as the outer sealing ring rotates with respect to the second part;
• an oblique projection in the form of an annular fling lip defined on the outer sealing ring, said projection being directed both radially and axially outwardly and extending approximately into the region of a plane of the axially outermost part of the seal and of the axial outer end of the second relatively rotatable part to which the outer sealing ring is sealed;
• the axially outer sealing ring includes a stiff part which extends generally radially across the radial space, the elastic sealing lip being formed over the stiff part, the elastic sealing lip comprising the fling lip.